Obtaining oscillatory or reciprocatory motion.



PATENTED FEB. 14, 1905.

H. H. YOUNG.

- OBTAINING OSOILLATORY OR REOIPROOATORY MOTION.

APPLICATION FILED DEC. 12, 1902.

2 SHEETS-SHEET 1.

'IIIIIIIIIIIL magmas %J..

No. 782,310. PATENTED FEB. 14, 1905.

H. H. YOUNG. OBTAINING OSGILLATORY OR REGIPROGATORY MOTION.

APPLIOATION FILED D110. 12, 1902.

2 SHEETSSHEET 2.

Patented February 14, 1905,

UNITED STATES PATENT OEEIcE.

HARRY HOIVLETT YOUNG, OF'OOLOHESTER, ENGLAND.

OBTAINING OSCILLATORY OR RECIPROCATORY MOTION.

SPECIFICATION forming part of Letters Patent No. 782,310, dated February1 1, 1905.

Application filed December 12, 1902- Serial No. 134,940.

To (1117/ whom] it minty concern:

Be it known that I, HARRY I-IowLET'r YoUNe, a subject of the King ofGreat Britain, residing at 10 Inglis road, Oolchester, in the county ofEssex, England, have invented new and useful Improvements in ObtainingOscillatory or Reciprocatory Motion, of which the following is aspecification.

This invention relates to improvements in obtaining oscillatory orreciprocatory motionfor example, for operating punkas or other bodiesrequiring similar propulsion.

According to the invention 1 make use of a pair or pairs of magneticsolenoids acted upon and obtaining their power from the passage of anelectric current which flows through each or all of the said solenoidswhich actuate a movable arm or the like so as to cause it to oscillateor to transmit an oscillating or reciprocatory motion, the said arm orthe like in its movement operating a contact device which controls theflow of current to the solenoids.

To enable the invention to be fully understood, I will describe it byreference to the accompanying drawings, in which Figure 1 is a sectionalside elevation of a device made according to the invention. Fig. 2 is asection on the line 2 2, Fig. 1. Fig. 3 is a diagrammatic view drawn toa smaller scale and illustrating the connection of the electriccircuits. Figs. 4 and 5 are a side and end elevation, respectively, of amodified construction of the motor device; and Fig. 1 is a similar viewto Fig. 4, but showing the parts in a different position. Figs. 6 and 7are two side elevations illustrating further modifications.

Referring first to the arrangement illustrated in Figs. 1, 2, and 3, 0/Z) are the two solenoids, which are mounted on a frame or support 0 ofany suitable construction. (Z is the swinging arm, which is adapted tobe oscillated by the solenoids, as hereinafter described, and whichmayitself form the part to be oscillated or reeiproeated or may be inconnection with such part. To reduce friction as far as possible, theoscillating part 61 is provided with a curved bearing-surface d, whichrests upon two knife-edge projections (Z (Z fixed to the support orbracket 0. The part (Z is provided with two arms (3 c, which carry attheir outer ends rods or cores (2 a, the said cores 0 extending into thesolenoids (a and 71, as clearly shown in Fig. 1. One terminal of each ofthe solenoids is connected to the inflow-wire f from the source ofcurrent, the other end of the coil (1 being connected to the contact 7upon the bracket 0 and the other end of the coil 0 being connected tothe contact 71, also upon the said bracket. 7' and /z are contacts whichare connected together by the wire i and to the inflow-wiref through theresistance j. (See Fig. 3.) I Z: are angular swinging frames which arepivoted at 7r Zr to the bracket or support 0 and are connected togetherby links I so that they are caused to move together, as hereinafterdescribed. Each of them carries a movable contact Z1, which is inelectrical connection with the return-wire These pivoted frames K1 areadapted to be operated so as to move the movable contact Z' alternatelyagainst the contacts 0 and and 72/ and /z/, respectively, through themedium of the tappet-pieces c 0 in connection with the cores 0. ashereinafter described. \Vith this arrangement when the arm (Z is swungover to one side one of the swinging contacts If is brought against thefixed contact /1 (see Fig. 1,) so that current flows through the wire 7.solenoid Z), contact 71, contact ZJ" to the return-wire The rod or core1/ is then drawn into the solenoid I), so that the arm (Z continues itsswing beyond the central point and in its movement upward brings thetappet (5 against its frame Zr, so as to shift the contacts Z1 7" andcause current to flow through the solenoid a, whereby on the arm (Zdropping by its own weight past the median plane it is raised by thesaid solenoid (L and the operation begins dc 12.0 00.

Vhere mere power is required, I advantageously connect the two solenoidsa and Z) in series, as shown in Figs. stand 5, and in this case theoscillating movement is preferably effected by the armature m of thesame magnet, which is drawn toward and allowed to move away from themagnet when the latter is energized and deenergized in the mannerhereinafter described. The arm (Z is suspended from the bracket 0, asshown, and the reciprocating armature m is attached to the said arm bymeans of lateral connecting-links '2? 72, the upper ends of which movewith the armature, and s0 cause the lower end of the arm (1 tooscillate. The armature m is provided with a rod 0, having mounted uponits upper end a sliding contact-piece 0', designed to be reciprocated upand down by collars 0 0, fixed to i the rod 0. When the saidcontact-piece o is in its lowermost position, as shown in Fig. 5", itmakes contact with the spring contact-piece p in connection with thewindings of the magnets (0 7), and when in its uppermost position, asshown in Fig. 4, it makes contact with the spring contact-piece inconnection with the terminal (1', connected to the return-wire, each ofthe said contacts being maintained by the pressure of the respectivespring contact-piece against the contact-piece 0 until moved up or downby one of the collars 0 0 The contact 0 is itself in connection withtheinflow-wire. lVith this arrangement it will been seen that when thearm (Z is moved to its highest position on one side of its center ofoscillation, as shown in Fig. 4, and is allowed to swing in thedirection of the arrow by its own weight the redo will be moved down,and just before the said arm (Z arrives at its lowest point the collar 0will impinge against the upper side of the contact-piece 0 and move itout of contact with the contact-spring g and into contact with thecontact-spring p, as shown in Fig. 5, thereby causing the current toflow through the magnets (1.7), which attract the armature m, andconsequently lift the arm (Z after it passes the median plane, which itdoes under the influence of momentum. Just before the arm cl reaches itshighest pointon the opposite side of the center to that from which itstarted the collar 0 will impinge against the under side of thecontact-piece 0, thereby diverting the current.

The arrangement shown in Fig. 6 is similar to that described withreference to Figs. 4 and 5, with the exception that the current to themagnets is controlled by a cam contact device 9', oscillated by the rod0, this rotating cam device merely making and breaking the circuit, butnot diverting it through a shunt, as is the case with the arrangementsdescribed.

Fig. 7 illustrates a construction which is similar to that describedwith reference to Figs. 4and 5, the rod 0 in this case being connectedto two pivoted arms a .s, which are adapted when in their lowermostposition, as

shown, to make contact with one another, so as to complete the circuitthrough themselves and the magnet. \Vhen the rod 0 is raised on thearmature being attracted, the two arms s v s separate and strike twolixed contacts Z in which case the current is diverted through theresistance and the shunt-line 1/.

Havin now )articularlv described and as-- certained the nature of mysaid invention and in what manner the same .is to be performed, Ideclare that what I claim is- 1. In a device for obtaining oscillatingand reciprocating motion, the combination with a pair of solenoids ormagnets, of a swinging or oscillating frame carrying the armatu res ofthe solenoids or magnets and of means whereby, on the said armaturesbeing attracted by the magnets, a complete magnetic circuit is formed soas to provide a powerful attractive pull upon the armatures at themoment of contact with the magnets or solenoids, substantially asdescribed.

2. The combination with a swinging arm, of a vertically-movablearmature, a magnet for raising said armature, a link connecting saidarmature with said arm below the center of oscillation of said arm and acircuit-breaker for the magnet-circuit operated by said armature,substantially as described.

The combination with a swinging arm, of a pair of vertical solenoids,vertic: lly-movable cores within said solenoids, connections from saidcores to said arm, engaging the arm below its point of suspension and acircuitbreaker for said solenoids operated by the vertical movement ofsaid cores, substantially as described.

4. The combination with a swinging arm, of a pair of vertical solenoids,vertically-movable cores within said solenoids, connections from saidcores to said arm, engaging the arm below its point of suspension, anelectric current for said solenoids, provided with two contacts, avertically-reciprocating rod operated by said cores. a slidingcontactpiece loosely mounted on said rod, and adapted to be forced intoengagement with one or other of said contacts, and held in relationtherewith, and projecting devices on said rod, for engaging andoperating said sliding contactpiece, substantially as described.

HARRY HOWLIGT'l. IOUN (1.

Witnesses:

JOHN E. Bousrmnn, C. (1i. RIGD'FIGRN.

